Gary R. Stinson, president of the Barnes Corners Sno-Pals snowmobile club and Snirt Run organizer, said he has been fielding calls from club members who want to cancel the event in light of the new information.

Mr. Stinson provided the certificate of insurance to local officials as a condition of this year's event, scheduled for April 12.

That certificate proves a joint policy is held by all snowmobile clubs in NYSSA.

"It does not cover ATVs," Mr. Rolf said. "It covers landowners and club members while doing work, maintenance or developing a trail or while on a snowmobile on a designated trail."

Mr. Rolf said he made Mr. Stinson aware of the lack of insurance Friday and encouraged him to seek additional coverage from insurance companies that specialize in recreational events.

Mr. Stinson acknowledged the conversation with Mr. Rolf, but said he had not yet heard an answer from his insurance agent, Anthony Franklin, Franklin-Case Agency LLC.

"I think we are covered," Mr. Stinson said, citing the NYSSA insurance handbook that lists fundraising and social events as covered activities. The handbook appears, however, to cover only snowmobile operations.

The Snirt Run is the Barnes Corners Sno-Pals' largest fundraiser, registering more than 3,000 participants last year.

Mr. Stinson said he is taking steps to obtain alternative coverage in the event he discovers the run it is not insured.

"I'm already working on it," he said. "I'm in the middle of one application."